A randomized 25 question test from a pool of 761 questions, good luck!
In a DCS, there is a controller scan cycle priority that should have enough time to execute all tasks. Which of the answers below represents the about of free time for a loaded DCS controller to function?
There are numerous threats to the security of a DCS. Which of the security measures below controls and supervises network traffic?
There are numerous I/O modules that a typical DCS has access to. Which of the modules below is described as one that can have 8, 16, or 32 output points powered by 24Vdc or 120/230 Vac?
There are several advanced alarm methods available that provide a greater level of functionality. Which of the methods below can be used if an interpretation of the plant can approximate its state?
DCS commonly is considered a computerised control system for a plant that has central operator supervisory control. Which of the terms below is best described as controllers and operator stations that are separated physically from the central control system?
The standard recommended by ISA-18.2 is for 3-4 priority level alarms to be used. Which of the alarm priority levels below should have the quickest response times?
In Modbus, data is read, and written in various memory ranges. Which of the answers below best represents the data type that a input status would use?
A DCS collects a lot of data during the course of operating. Which of the terms below would best describe the database that contains the value of all the parameters and tags, as well as all the programming and the DCS configuration?
Modbus has standard command codes to allow the master to access information from it's slaves. Which of the commands below would be used to write the contents of a series of 10 coils to the slave device?
HMI networks are needed to expand or contract as required over their lifetime of use. Which of the networking types below will have the least amount of scalability?
Which of the wire types below is best described as "requiring a tinned copper drain wire"?
Which of the messaging types below is best described as communication by sending a command, initiated by the scanner module, to all field device on the segment?
Which of the answers below best describes the number of pins in a standard A USB connector?
Alarm management is based upon the process conditions model. Which of the conditions in that model could be described as the optimal operating conditions?
The numerous tasks that are accomplished at the same time in a DCS, is a result of the configured software programs that it has . Which of the software programs below will governed by IEC-61131-3?
There are numerous I/O modules that a typical DCS has access to. Which of the modules below is described as one that coverts the analog signals from T/Cs and RTDs to a digital signal?
Field instrument to PLC is best defined by which of the answers below?
Which answer below is best described as the RS-485 standard for voltage range to transmit a "Space"?
Which of the lengths below relates best to a spur cable with 4 field devices connected?
Historical data can be logged through a HMI application. Which of the data storage methods below would best be described as one that has superior acquisition of events, but does not use it's storage space effectively?
In the protocol specifications of Modbus, there are standard 5 and 6 digit addresses, each address starting with a specific number for the register type. Which number below starts the input status registers addresses?
There are several data access methods used to transmit data. Which of the answers below can be described as a single controlling device commences communication with the responding devices attached to the same network?
In the protocol specifications of Modbus, there are standard 5 and 6 digit addresses, each address starting with a specific number for the register type. Which number below starts the input status registers addresses?
Which of the answers is not an disadvantage of analog field communication? Choose the best answer from those below.
Which one is best described as connecting the input signal of a device, with the output of the converter itself?